Hrm, if Taunt works on RG units then I could add festival Wood Sorrel to the list (lifesteal skill, 80/50% evasion depending on number of rounds passed, +attack power in general and vs. bosses, +attack power based on current HP).

Now that I look into it Hop could work too since she also comes with evasion and lifesteal as well as +skill proc. Plus, that way I'd be back to having two of the Four Legendary Queens of Drinking in my squads (bloomed Heather is holding her own thanks to skill proc and adding magic weakness for herself and another squad mate).